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Non-credible contingency event - Tas Region - 31 July 2016
Non-credible contingency event - Tas Region - 31 July 2016
At 0602 hrs the Farrell - Reece No 1 and the Farrell - Reece No 2 220 kV Lines tripped.
AEMO did not instruct load shedding.
AEMO has not been advised of any disconnection of bulk electrical load.
AEMO will reclassify this event as a credible contingency event due to lightning
Manager NEM Real Time Operations
Updates to Victorian system normal stability constraint equations
The Victorian system normal constraint equations that determine Victorian export limits based on transient stability and voltage stability at Heywood for Victoria to South Australia flows will be updated to a revised formulation on 25 July 2016 after 1330 hrs. This revised formulation models the effects of higher flows on Victoria to SA on Heywood and the new series capacitors at Black Range.
The changes are to the following constraint equations :
V::N_NIL_V1
V::N_NIL_V2
V::N_NIL_Q1
V::N_NIL_Q2
V::N_NIL_S1
V::N_NIL_S2
V::N_NIL_SD
V^S_HYCP
Ben Blake
AEMO Operations
Non-credible contingency event - Queensland Region - 14/07/16
Non-credible contingency event - Queensland Region - 14/07/16
At 0103 hrs the Woree 275kV circuit breaker 8772 opened automatically offloading the Challumbin -Woree 275kV line
At 0117 hrs the Challumbin -Woree 275kV line was placed on load
At 0140 hrs the Woree 275kV circuit breaker 8772 opened automatically offloading the Challumbin -Woree 275kV line
At 0206 hrs the Challumbin -Woree 275kV line was placed on load
AEMO has not been advised of any disconnection of bulk electrical load.
The cause of this non credible contingency event has been identified and AEMO is satisfied that another occurrence of this event is unlikely under the current circumstances.
Manager NEM Real Time Operations
Cancellation of the Forecast Lack Of Reserve Level 2 (LOR2) condition in the South Australia region - STPASA
The Forecast LOR2 conditions in the South Australia region advised in AEMO Electricity Market Notice No. 54410 are cancelled at 1200 hrs 12/07/2016.
Ashley Dunn
Operations Planning
FORECAST LACK OF RESERVE LEVEL 2 (LOR2) in the South Australia region (ST PASA).
AEMO ELECTRICITY MARKET NOTICE
FORECAST LACK OF RESERVE LEVEL 2 (LOR2) in the South Australia region (ST PASA).
AEMO declares forecast LOR2 conditions for the South Australia region for the following periods.
Wednesday 13th July 2016 from 1800 hrs to 1830 hrs
The minimum reserve available is 163 MW.
Thursday 14th July 2016 from 1830 hrs to 1930 hrs
The minimum reserve available is 171 MW.
This calculation is based on a LOR2 trigger level of 200 MW.
AEMO is seeking a market response.
Manager NEM Real Time Operations
Cancellation - Forecast Lack Of Reserve Level 2 (LOR2) in the SA Region - PDPASA - 7 Jul 2016
Cancellation - Forecast Lack Of Reserve Level 2 (LOR2) in the SA Region - PDPASA - 7 Jul 2016
The Forecast LOR2 condition in the SA Region advised in AEMO Electricity Market Notice No. 54303 is cancelled at 1920 hrs 7 Jul 2016.
Manager NEM Real Time Operations
Forecast Lack Of Reserve Level 2 (LOR2) in the SA Region - PDPASA - 7 Jul 2016
Forecast Lack Of Reserve Level 2 (LOR2) in the SA Region - PDPASA - 7 Jul 2016
AEMO declares a Forecast LOR2 condition for the SA Region.
From 1830 hrs to 1930 hrs 7 July 2016
The contingency capacity reserve required is 200 MW
The minimum reserve available is 182 MW
AEMO is seeking a market response.
AEMO is not intending to intervene at this point in time.
Manager NEM Real Time Operations
Cancellation - Forecast Lack Of Reserve Level 2 (LOR2) in the SA Region - PDPASA - 7 Jul 2016
Cancellation - Forecast Lack Of Reserve Level 2 (LOR2) in the SA Region - PDPASA - 7 Jul 2016
The Forecast LOR2 condition in the SA Region advised in AEMO Electricity Market Notice No. 54289 is cancelled at 1635 hrs 7 Jul 2016.
Manager NEM Real Time Operations
Forecast Lack Of Reserve Level 2 (LOR2) in the SA Region - PDPASA - 7 Jul 2016
Forecast Lack Of Reserve Level 2 (LOR2) in the SA Region - PDPASA - 7 Jul 2016
AEMO declares a Forecast LOR2 condition for the SA Region.
From 1800 hrs to 1930 hrs 7 July 2016
The contingency capacity reserve required is 200 MW
The minimum reserve available is 149 MW
AEMO is seeking a market response.
AEMO is not intending to intervene at this point in time.
Manager NEM Real Time Operations